Question

Fifty percent of the surface area of the bread is crust. What is the height h?

Answer 1

The height h is
`5\ cm`

Explanation:

we know that

The surface area of the bread is equal to

`SA=2B+Ph\\`

where

B is the area of the base

P is the perimeter of the base

h is the height

In this problem

If fifty percent of the surface area of the bread is crust

then

`2B=Ph\\`

substitute the values

`2(10)(10)=4(10)h\\`

`200=40h\\`

`h=200/40=5\ cm`